Across
- 2. main function is to supply the body with oxygen and remove carbon dioxide
- 4. where oxygen and carbon dioxide exchange
- 10. also known as cardiovascular system
- 12. carry blood away from the heart
- 14. pumps blood to the body
- 15. blood circulation within the heart
Down
- 1. passageway from the larynx to the lungs
- 3. carries blood back to the heart from the lungs
- 5. where blood enters the heart
- 6. two tubes that branch from trachea
- 7. the big artery that takes blood to the entire body
- 8. dome-shaped muscle under lungs
- 9. delivers blood to the ventricles
- 11. vocal cords that vibrate to make sound
- 13. when blood to the brain is blocked (caused by blood clot or blood vessel burst)